* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #f3f4f6;
    color: #111827;
}

.main-wrapper {
    min-height: 100vh;
}

.navbar {
    background: #111827;
    color: #fff;
    padding: 16px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.logo {
    color: #fff;
    text-decoration: none;
    font-size: 22px;
    font-weight: bold;
}

.nav-right {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.nav-right a {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
}

.nav-right a:hover {
    color: #93c5fd;
}

.container {
    max-width: 1300px;
    margin: 30px auto;
    padding: 0 20px;
}

.card {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

h1, h2, h3 {
    margin-bottom: 15px;
}

p {
    line-height: 1.6;
    margin-bottom: 12px;
}

.btn {
    display: inline-block;
    background: #2563eb;
    color: #fff;
    text-decoration: none;
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}

.btn:hover {
    background: #1d4ed8;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

input[type="text"],
input[type="password"],
input[type="file"],
select {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
}

.info-box {
    background: #eff6ff;
    border-left: 4px solid #2563eb;
    color: #1e3a8a;
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.error-box {
    background: #fee2e2;
    border-left: 4px solid #dc2626;
    color: #991b1b;
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

table th,
table td {
    padding: 12px 14px;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
    white-space: nowrap;
    font-size: 14px;
}

table th {
    background: #f9fafb;
    font-weight: 700;
}

.action-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.login-wrapper {
    max-width: 480px;
    margin: 60px auto;
    padding: 0 20px;
}

@media (max-width: 768px) {
    .navbar {
        align-items: flex-start;
    }

    .nav-right {
        width: 100%;
    }
}
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

/* Ortadaki başlık */
.topbar-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-weight: bold;
    font-size: 18px;
}